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By: Funk, V. A. (Vicki Ann), - Sancho, Gisela - Roque, NádiaType: ArticleIn: PhytoKeysVolume: 91Series:Issue:Date: 2017Page Range: 105-124Publication Info: Pensoft Publishers 2017Subjects: Arizona Asteraceae Gochnatia Gochnatioideae Mexico South American-Mexican disjunct distribution Texas